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Gripping device

a technology of gripping device and gripping head, which is applied in the direction of gripping head, manufacturing tools, transportation and packaging, etc., can solve the problems of cumbersome removal of such parts, and achieve the effect of improving the function improving the stability of the gripping device, and being convenient and efficient to us

Active Publication Date: 2010-04-01
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a gripping device that is easier and more efficient to use, and can adapt to different sizes of inner rings. It has a spring positioned between the inner body and the outer body that can force the device to a first gripping position, and can be set in multiple other gripping positions by moving the inner body and the outer body relative to each other. The device is semi-automatic and can be used for parts with different inner diameters. It is easy and efficient to use, and improves the stability and function of the device. It also has markings to indicate the different predefined gripping positions that correspond to predefined bearings, improving the reliability of the device.

Problems solved by technology

Since the purpose of using press fit is to fix the parts together in a firm way, the removal of such a part may prove to be cumbersome.

Method used

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Examples

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Embodiment Construction

[0024]The embodiments of the invention with further developments described in the following are to be regarded only as examples and are in no way to limit the scope of the protection provided by the patent claims.

[0025]In the following, a radial bearing is used as an example of a part that is to be removed with the inventive gripping device. The radial bearing consists of an outer ring, a plurality of rolling elements, such as balls, cylindrical rollers, needle rollers, tapered rollers or spherical rollers, and an inner ring. The gripping device is adapted to extract the complete bearing by the inner ring. The gripping device is also suitable to extract other similar parts, such as different types of bearings, sleeves, bushings, inner rings and other types of parts where it is possible to apply the gripping device through the centre hole of the part in question. Further, the gripping device is also adapted to grip the inner part of an outer ring of e.g. a broken bearing or a splitab...

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Abstract

The invention relates to a gripping device comprising a cylindrical thorn (3), an inner body (5) and an outer body (4) with a plurality of movable arms (2), each arm comprising a claw (10), wherein the thorn (3) and the inner body (5) are directly coupled to one another, wherein a spring (6) adapted to force the extractor device to a first position is positioned in between the inner body (5) and the outer body (4), and wherein the gripping device is adapted to be set in a plurality of other positions by moving the inner body (5) and the outer body (4) relative to each other along the symmetry axis (11). The advantage of the invention is to provide a gripping device for the removal of circular inserts, such as bearings, sleeves, etc. that is easy and reliable to use and that is adapted to grip different sizes of inserts.

Description

TECHNICAL FIELD[0001]The present invention relates to a gripping device to be used in an extractor tool for disassembling parts. This gripping device is especially advantageous for the removal of roller bearings, but is also well adapted for the removal of sleeves, bushings, etc. mounted in a housing. For bearings, the gripping device is adapted to grip the inner ring of a complete bearing mounted in a housing, or to grip the inner side of an outer bearing ring, e.g. of a broken bearing.BACKGROUND ART[0002]In mechanical designs, there is a need to fasten parts to one another. Some parts, such as bearings, sleeves, bushings and the like are often attached to one another by press fit. Since the purpose of using press fit is to fix the parts together in a firm way, the removal of such a part may prove to be cumbersome.[0003]U.S. Pat. No. 6,536,088 B1 describes a gear puller with outwardly forced jaws. The jaws are inserted into the inner hole of e.g. a bearing. An actuator rod is inser...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B25B27/06B66C1/54B25J15/00B23Q3/00
CPCY10T29/53991B25B27/06
Inventor VAN OS, ARIE JOHANREKERS, HENDRIK CORNELIS
Owner AB SKF